// Copyright 2022 EMQ Technologies Co., Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

//go:build !prometheus && core
// +build !prometheus,core

package metric

import (
	"fmt"
	"github.com/lf-edge/ekuiper/internal/conf"
	"github.com/lf-edge/ekuiper/pkg/api"
)

func getStatManager(_ api.StreamContext, sm DefaultStatManager) (StatManager, error) {
	if conf.Config != nil && conf.Config.Basic.Prometheus {
		return nil, fmt.Errorf("prometheus support is disabled")
	} else {
		return &sm, nil
	}
}
